Liquid-fuel-delivery device



G. C. BRUHN, JR. LIQUID FUEL DEUVERY DEVICE.

APPLICATION FILED APR. 2|. 192].

Patented Jan. 3,1922.

[7706/7 for" fl/zzzf VUNITED STATES enonen o. 'izauzan, an.) "orwnnnmne, wnsr vrnemrai' V LIQUID-EUEL-DELIVEBY nEvIoE.

fueldelivery devices, and more, specifically to a reserve providingequipment for fuel supply reservoirs.

The primary object of the invention is to provide a fuel delivery devicefor the main supply tanks of motor vehicles whereby is;

adjacent to the bottom of the created in suchjtanka reserve supply of1iquid fuel which may be drawfi upon in casesof emergency. r V

More specifically stated, the object of this invention to provide,mechanism de- 'cles, whichfshall beoperativefor furnish- 'ing ind nt-i1the supply in the tank has fallen'to apredetermined low level, whichshall fsus'pend operation said -level ,-and

"which is capable of manualadgustinent fol lowing suchsu'spension-torender it operative 7 for delivering the remainder, orreserve sup; i i

ply, of fuel contained in the tank.

, fIn describing the invention in detail, 'refe'rence isher'ein'had tothe accompanying urawings, in 'which- 1 Figure 1 is a side elevation ofthe invention applied to a fuel supply tank of either j 1 thesuc'tion-j'feed gor force-feed type, said "tan'lrbeingshown ini'rerticajl section," V Figure-21s an enlarged vertical section of theinvention;

Figure 3is an enlarged 'fsideelevation of" I lines in Fig i. Insuchpos ton of the rod-a spiral spring 15 interposed between the {the lowerjendportion of the invention; 7

, "Figure a is a side elevation of the upper and of the invention}viewed from a point I atiight angles'to the viewpoint in Figs. '45

1*and2; and- V Figure 5 isa fview si'rnilartoFig; 1, show- "ingthefinvention modified to adapt it for form, the same having its lowerend exte-- f riorly threadedas shownat2, for mounting in the top of afuel supply tank 3, and being formed"with a laterally extending nipple4- adapted to be coupled to a feed lineleading inFig. 1.

Parsarorriee.

.to a vacuum tank or auxiliary reservoir a t d Janra, i922; 1931.smash/483,398. i

from'which fuel is fed tothe carburetor by,

gravity. 1

Depending within thetank'3 from the lowei-threaded end of saidfitting-"1, and preferably brazed or soldered tothe latter, is a pipe 6which carriesupon itsdower end a short length of tubing 7 of relativelylarge diameter, said tubing being preferably attached to said pipe bybrazing. Slidably i'eceivedwithin the lower end of said tubing Tie areduced end or nipple 8 formed on or carried by a second pipe 9 having adiameter approximating that of said tubing. Said pipe 9 has its lowerend disposed closely tank, as shown A rod 10 of small diameter andsupporting crosshead 11 on its upper end is 1; directed downward throughthe fitting v 1, signed ,primarily 'for use in the nain fuel supplytanks or reservoirs of motor vehi a bore QO'being provided thereforin'the downward through the ali'nedpipes and has its lower endprojecting outward from the pipe 9. 1 Said rodconstitutes a support forhav ng a the vertically movable pipe 9', a spring 12 on the projectingend of said rodand the end of said pipe, or between said nut and aninternal shoulder 14: provided in said pipe,

being interposed between a nut 13 threaded V such shoulder,;when thesame is employed,

being preferably constituted by a collar brazed within the pipe at a"suitable point adjacent to the lower end of the latter;

A suitable packinggland orca-pg5' is threaded upon the upper end of thefitting 1 abount the rod '10, as shown.

Said rod is normally disposed with the crosshea-d 11 thereof seated diretly upon said cap 5, as'

shown in Fig. land as is indicated in dotted lower end of the pipe 6 andthe reduced end or nipple 8 of the pipe, 9 is permitted to hold in saidnipple are uncovered, permitting unobstructed entrance of liq'uld fuelto be sup plied to the vacuum tank or auxiliary fuel reservoir.

" said pipe 9 depressed to the position shown a in Figs. 1 and 3, inwhich ports 16 provided When the motor'of the vehicle has stopped, 1

due to exhaustion of the fuel in the tank to mere act of elevating therod lO and mount-= r ing the crosshead 11 thereof in seats 17 pro videdtherefor in upright standards 18 of appropriate length. carried by thecap 5. When the rod is so elevated, the pipe 9 is drawn upwardagainstthe tension of the spring to point" where the lower end bf theenlarged lower portion 7 seats firmly, upon a washer 19 carried by saidpipe in encircling relation to said nipple 8 forming a sealed jointbetween said pipes, whereupon the pressure or suction, asthe case maybe,acts 3 to feed fuel upward through the lower end of the pipe 9; or, asis obvious, the washer 19 mayfbe dispensed with byshaping the adja cent,ends of the tubing 7' and'pipe 9, to provide aground joint.

The tension ofthegsprin'g 12 is sufficient to maintain the'rod l0 firmlyseated bothwhen inits lowered and elevated positions. I

In the modifiediconstruction of the invention shown in Fig. 5, whichisdesigned for use in tanks from which the fuel is furnished either bypressure or gravity,-the fitting 1 is mounted in the bottom of the tank3-and the-use of the pipe 6 and tubing, section T,

I shown in Figs. ,1 and 2, is dispensedwith.

, A short pipe 9 has a reduced end or nipple p8 -telescoped within theinner end of said I "fitting and resting againstthe end of aispiral jjacent end ofthe pipe 9. I

spring 15 which tends to hold/said pipe thrust outwardly in a positionin which ports 16provided in said-nipple are uncovered,as

shown.'- A red l0 is directed throughsaid fittingl and pipe 9*. and hasanut 13 thteadedupon the projecting end thereof against'one endofa'spiral spring 12 which has its opposite end resting against the ad-,In its normal operation, the rod 10 is dis posed with the crosshead 11thereof seated upon the standards 18 carried by the cap 5 for holdingthe pipe 9 drawn downward against. the tension of the spring 15 to a po-I sition in which the ports 16 are closed against-the passage of liquidfuel there.

through. 'When the fuel'has been exhausted to a level 'at which it willnot enter the upper endof the pipe 9 the rodlO is drawn outward and.turned to a" position in which its -cro sshead.-.l1 is disposed between.the

I standards 1 8 ,j where upon, actuated bythe I "spr ng 12 .-1t 1s drawninward toa position in which lts crosshead seats directly upon Y the cap5% allowing the spring 15* to thrust ;16 .-areopen for the passage offuel there through; 7 c. r

thepipeqt) we position wherein the ports What is claimed is.

tank, .ofan outlet passageway comprising telescoping portion thereof,said ports being f' mentionedelevation.

open at one elevation of said movable memberand closed at another,tension means normally holding said movable member at the-firstmentioned elevation, and means for shifting said movablemember to thesecond 2. The; combination with a liquid fuel tank, of, an outletpassageway comprising alined non-rotatable members disposed intelescopic relation, one-of said members being stationary and the othermovable one of said membershaving inlet ports in the telescopingportionthereof, said ports being 3 open at one elevation of said movablemem berand closed at another, tension means adapted to normallyfholdsaid movable member at theopen-port elevation, and a rodhavingconnection with said movable member through the interior of saidstationary member, said rod being adapted. to permit said movable memberto occupy isaid open-port elevation and being shiftable, for

carrying said movable member to the other;,;

elevation g inst the force exerted b 'L- id tBIlSlOTL means. i

3. The combination aliquid fuel tank, of afpipe fitting seated inthe topof a motorsupply line, a pipe 'depending from [said fittingwithin thetank, a relatively shorter p-ipe in telescoping relation to the firstmentioned pipe and' having its lower 7 said tank and; adapted for.connection with;

end disposed adjacent to. the bottom of the.

tank, one of said' pipes having .fuel inlets in the telescoping portionthereof, yieldable meansv normally maintaining said shorter pipe.depressed in a position wherein said port being adapted foradjustment toeleinlets are uncovered, and avertically movgf able'support for saidshorter pipe, said supvate said shorter pipe to a'posi'tion wherein saidinlets are closed. r

4:. The combination with a vertically alined pipes depending from thetop of the tank, the upper of saidpipeshaving its lower end located aspaced distance from thebottom of the tank, the lower 'pipe;

being shorter than the. upper pipe and having its: upper end intelescoping relation to,

the lower-end-of the latterrand havingits ports in the telescoping endportion thereof, said ports being open in the lowered position of the'lowerpipe'and closed in the elevated position of the latter, tensionmeans normally holding said lower pipe in itslowered position, and asupport for. said lower pipe, said support being shiftable for movingsaid lower pipecto its elevated'position.

5.The combination 'w-ith a liquid fuel liquid fuel-la tank, of an outletpassageway comprising lower 'endflocated adjacent tothe bottom'of thetank, one of said pipes having inlet,

tank; of anvoutlet passageway comprising vertically alined pipesdepending from the top of the tank, the upper of said pipes having itslower end located a spaced distance from the 'bottomiof the tank, thelower pipe being shorter than said upper pipe and having its upper endin telescoping relation to the lower end of the latter and having itslower end located closely adjacent to the bot tom, of the tank, one ofsaid pipes having inlet ports in the telescoping end portion thereof,said ports being open in the lowered position of the lower pipe andclosed in the elevatedposition of the latter, tension means normallyholding said lower pipe in its lowered position, and. a rod extendingvertically through said pipes into supporting relation to the lower pipeand shiftable vertically for elevating the latter to; port closingposition;

lower end located a spaced distance from the bottom of the tank, thelower pipe being 6. The combination with a liquid fuel tank, of anoutlet passageway comprising shorter than said upper pipe and having itsupper end in telescoping relation to the lower end of the latter andhaving its lower end located closely adj acentto the bottom of the tank,one of said pipes having inlet ports in the telescoping endportionthereof,

said ports being open in the lowered position of the lower pipe andclosed in the elevated position of the latter, tension meansnormally'holdingsaid lower pipe in its lowered position, and a rodextended vertically through saidpipes and having a nut threaded upon itslower end in supporting relation to the lower pipe, said rod beingvertically movable for elevating said lower pipe to port closingposition, and means for supporting said rod in its elevated position.

In testimony whereof, I atlix my signature in presence oftwo subscribinwitnesses. e GEORGE o. BRUHN, JR.

Witnesses:

E. W. KRAUsn, H. E. DUNLAP.

